Python numpy shape 矩阵

原文:https://blog.csdn.net/u014159143/article/details/80318433

 

 

import numpy as np


x = np.array([[1,2,5],[2,3,5],[3,4,5],[2,3,6]])

# 输出数组的行和列数
print(x.shape)  #结果: (4, 3)

# 只输出行数
print(x.shape[0]) #结果: 4

# 只输出列数
print(x.shape[1]) #结果: 3


# h:行树 w:列数
h, w = x.shape[:2]
print(h)
print(w)
posted @ 2020-01-15 17:11  古兴越  阅读(263)  评论(0)    收藏  举报